Coincidence on the 'Way back home' can be quite the amazing thing. Either that or the Hentai gods decreed that it be so for the sweet Vanilla loving to take place.
Also, he definitely had the best birthday present. Sex, the love of a girl who spent a lot of time with you, and will probably become your new girlfriend.
That ending though. Come on, when she says she wants you, surely it can only mean one thing? But it was nice to see her just come out and say she likes him straight up.